Clutch for transmission of power

Abstract

The present invention relates to a clutch for transmission power. The clutch for transmission power according to the present invention includes flywheel, clutch cover and clutch disk assembly positioning between the flywheel and the clutch cover; moreover, the clutch disk assembly includes a clutch facing having main body portion formed with a center hole in the middle thereof, and a contacting portion wherein one side thereof faces the friction pad at said flywheel side and the other side thereof faces the press plate of said clutch cover, and the portion facing each other between the friction pad and the press plate is made of carbon-carbon composition; a spline hub being overlapped with one side of the clutch facing wherein a spline groove is formed in the inner diameter thereof and a connecting means for connecting the clutch facing with the spline hub. Furthermore, the clutch disk assembly and the method of manufacturing the friction substance for clutch according to the invention can improve assemblability and reduce weight by simplifying it as a single part without using shock absorbing apparatus such as coil spring or the like on clutch disk assembly. In addition, the power transmission of an engine can be improved, and also it has an effect that an automobile can start softly and slippage does not occur even at abrupt acceleration by providing with carbon-carbon composition or carbon-silicon carbide composition having excellent shock absorption function.

1. A clutch for transmission power comprising a flywheel having a friction pad, a clutch cover having a press plate, and a clutch disk assembly positioned between said flywheel and said clutch cover, wherein said clutch disk assembly comprises:
 a clutch facing having a main body portion formed with a center hole in the middle thereof, and a contacting portion wherein one side thereof faces the friction pad at said flywheel and the other side thereof faces the press plate of said clutch cover, and the contacting portion is made of a carbon-carbon composition which is composed of 20˜75 weight % graphitized carbon fiber and 25˜80 weight % pitch; 
 a spline hub being overlapped with one side of said clutch facing wherein a spline groove is formed in the inside thereof; and 
 a combining means for combining said clutch facing with said spline hub. 
 
   
   
     2. The clutch for transmission power of  claim 1 , wherein said spline hub is formed with a boss for inserting into said center hole of said clutch facing. 
   
   
     3. The clutch for transmission power of  claim 1 , wherein said combining means comprises:
 a retainer ring being overlapped with the other side of said clutch facing; and 
 a fastening member for combining by passing through said clutch facing, said spline hub and said retainer ring together. 
 
   
   
     4. The clutch for transmission power of  claim 3 , wherein said fastening member includes either bolt or rivet. 
   
   
     5. The clutch for transmission power of  claim 1 , wherein said carbon fiber is a single fiber. 
   
   
     6. The clutch for transmission power of  claim 1 , wherein said carbon fiber is formed by stacking continuously woven carbon fabrics. 
   
   
     7. The clutch for transmission power of  claim 1 , wherein said contacting portion is formed with carbon-silicon carbide which is composed of 3˜20 weight % silicon, 10˜60 weight % silicon carbide, and 20˜87 weight % pitch-containing carbon. 
   
   
     8. The clutch for transmission power of  claim 7 , wherein said carbon fiber is a single fiber. 
   
   
     9. The clutch for transmission power of  claim 7 , wherein said carbon fiber is formed by stacking continuously woven carbon fabrics. 
   
   
     10. The clutch for transmission power of  claim 1 , wherein said body portion is integrally formed with said contacting portion by using the same carbon-carbon composition material which is used for said contacting portion. 
   
   
     11. The clutch for transmission power of  claim 1 , wherein said press plate is provided with a press pad adjoining said clutch facing, and said press pad and said friction pad are formed with the same carbon-carbon composition which is used for said contacting portion.